Lieutenant Rip Crandall is hoodwinked into taking command of the "Wackiest Ship in the Navy" – a real garbage scow with a crew of misfits who don't know a jib from a jigger. What none of them knows, including Crandall, is that this ship has a very important top-secret mission to complete in waters patrolled by the Japanese fleet. Their mission will save hundreds of allied lives – if only they can get there in one piece.
Jack Lemmon
as Rip Crandall
Ricky Nelson
as Tommy Hanson
John Lund
as Wilbur Vandewater
Chips Rafferty
as Patterson
Tom Tully
as Captain McClung
Joby Baker
as Josh Davidson
Warren Berlinger
as A.J. Sparks
Patricia Driscoll
as Maggie
Mike Kellin
as Jack MacCarthy
Richard Anderson
as Dennis Foster
Alvy Moore
as Johnson
Teru Shimada
as Samada
